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Table 2 Otoscopic, adudilogical, and vestibular assessments of the patients

From: Benign paroxysmal positional vertigo: a multi-center study

  Number Percent
Otoscopic examination
Normal tympanic membrane 100 87.7%
Dull 10 8.8%
Retracted 2 1.75%
Perforated 2 1.75%
Pure tone audiometry
Normal hearing 84 73.7%
High-frequency hearing loss 24 21%
Sever SNHL 4 3.5%
Mid-frequency SNHL 2 1.75%
Tympanometry
Type A 108 94.7%
B 4 3.5%
Perforated 2 1.75%
Dix Hall Pike
Upbeating torsional nystagmus 106 93%
Down beating torsional nystagmus 4 3.5%
Negative 4 3.5%
Supine roll test
Left geotropic nystagmus 4 3.5%
Negative 110 96.5%
Deep midline head-hang position
downbeat nystagmus 4 3.5%